LilyGo-T-Call-SIM800 Controlling Relays via SMS

Here is the code for controlling LilyGo-T-Call-SIM800 via SMS. Similar code can be used for any ESP32 board with SIM800L module attached over the serial connection.

Demo

Running the code

You need Visual Studio Code with the PlatformIO extension installed. Then simply connect the LilyGo to your computer and hit upload.